21523268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{599}}^1\times {\mathrm{691}}^1$

素因数の和:1307

約数の個数: 24

約数和(自身を含む): 40689600

約数和(自身を除く): 19166332

約数列:

[1, 2, 4, 13, 26, 52, 599, 691, 1198, 1382, 2396, 2764, 7787, 8983, 15574, 17966, 31148, 35932, 413909, 827818, 1655636, 5380817, 10761634, 21523268]

約数ペア:

[(1, 21523268), (2, 10761634), (4, 5380817), (13, 1655636), (26, 827818), (52, 413909), (599, 35932), (691, 31148), (1198, 17966), (1382, 15574), (2396, 8983), (2764, 7787)]